The majority of people are stupid and have bad taste in everything. This isn't new. This isn't only common to your generation. Just be thankful that you can see this, which means you have comparatively better taste than them. Probably not as good as mine mind you, but you have to work towards that.
The real trick is to feign humbleness. "oh yeah that's neat, but hey maybe you might like this!" that's how you can turn your friends into cool folks like you, without the risk of turning them off. If they realize you know they have bad taste in stuff then they might go hang out with their bad tasting friends instead.
I honestly don't even know if this post is serious or not. I scare myself sometimes.